Xiao Yu, the god of war, chose to retire from the city after becoming famous on the battlefield, became the Liu family's son-in-law, and lived an ordinary life. However, the peaceful life did not last long. The cold ridicule of his wife's family, the intrigues of his competitors, and the undercurrent of various forces all forced Xiao Yu to show his talents again. In the process of protecting his wife and family, Xiao Yu's true identity gradually surfaced. He not only had to face his former enemies on the battlefield, but also faced various challenges in the city. In the end, Xiao Yu relied on his extraordinary wisdom and strength to resolve the crisis, win respect and love, and achieve self-salvation.